Windows 10: Taskbar Icon is incorrect - showing an icon for another applicaton

Windows 10 Pro, v1909, desktop. I uninstalled firefox & when I rebooted all my apps that were pinned to the taskbar were gone except 2. I opened C:\Users\user\AppData\Roaming\Microsoft\Internet Explorer\Quick Launch\User Pinned\TaskBar and they were all there so I rebooted and they were still gone so I repinned all of them to the taskbar again.

- Adobe Acrobat Reader DC shows the icon for Windows Photo Viewer in the taskbar whether it is pinned or not.
- The Adober Acrobat Reader shortcut is showing the correct Adobe Acrobat Reader icon
- Default app for Photo Viewer is the Windows Photo Viewer
- Default app for file type pdf is Adobe Acrobat Reader
- Running Adobe Acrobat Reader or double clicking a pdf file shows the correct Adobe Acrobat Reader icon in the upper left corner of the app window, but the icon on the taskbar is the Windows Photo Viewer icon

I had this exact problem before either on this machine or my laptop, but I can't remember how I fixed. Can't remember if I deleted the iconcache* files or the thumbcache* files in the C:\Users\david\AppData\Local\Microsoft\Windows\Explorer directory or did something else. I just remember it was a pain.

Anyone have an idea how to fix this.

:)

 

System Icons on taskbar

Hi,

Thank you for posting on Microsoft Communities.

Are you referring to the clock system icon on the taskbar?

If so, I suggest you to follow the steps mentioned below:

• 
  Click on the search bar on the taskbar.
  
• 
  Type system icons.
  
• 
  Under Turn System Icons ON or OFF, turn On the Clock and check with the issue.
  

Hope it helps.

 

Taskbar icons

Hi,

To address your concern, follow the steps below on how to show hidden icons on the taskbar.

• Open Settings, and click on the Personalization
  icon.
• Click on Taskbar on the left side, and click on the
  Select which icons appear on the taskbar link under the Notification area section on the right.
• Turn on Always show all icons in the notification area at the top

Let us know how it goes.

 

Incorrect Icon In Taskbar

Try to reinstall Adobe reader. Or fix the installation.